18. Rana sylvatica AP 19. Rana cascadae AP 20. Rana clamitans AP 22. Ascaphus truei AP tectorium 23. Xenopus laevis AP tectorium back to page 1 of comparative morphology  

Scanning electron micrograph of the ceiling of the AP chamber of Kassina senegalensis, the striped running frog. The arrowhead points to the tectorial corner.

Last updated 01/22/09